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When swapping out the master cylinder I've read that it should be bench bled first before bolting it in place.
If a power bleeder is used to bleed the system is it still necessary to bench bleed the M/C before installing it?
Jim Olson 
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I've seen this question many times and an not sure myself, but the concensus seems to be "yes". I did.
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Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
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YES...a pressure bleeder won't actually be able to bleed the master itself very well. The master needs to be airless first, so bench-bleed it. Unless, of course, you happen to have all the time in the world to fool with bleeding yer brakes...
Joel Adams
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I bench bled mine because I figured the fluid wouldn't get around the seals on the piston unless it was moved.
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Thanks guys!
Jim Olson "The Toys"...!!! Save the Wave!
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in Forum: C3 Engines, Driveline and Handling
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